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25 MHz 1400 V differential oscilloscope probe 20:1/200:1

The TA057 is a 25 MHz bandwidth active differential probe suitable for high common-mode voltage measurement applications up to ±1400 V (DC + peak AC).

This differential probe extends the capability of standard single-ended input oscilloscopes to allow a safe and accurate method of making high-voltage differential measurements. Applications include making safe measurements in power circuit applications and acquisition of low-speed balanced differential signals found in serial communications buses.

TA057 differential oscilloscope probe specifications
Bandwidth DC to 25 MHz (–3 dB)
Attenuation ratio 20:1/200:1
Accuracy ±2%
Rise time  14 ns
Input impedance 4 MΩ// 5.5 pF each side to ground
Input voltage
Differential range ±140 V (DC + peak AC) or 140 V RMS @ 20:1 
±1400 V (DC + peak AC) or 1000 V RMS @ 200:1 
Common mode range ±1400 V (DC + peak AC) or 1000 V RMS @ 20:1 and 200:1
Absolute max. voltage
(differential or common mode)
±1400 V (DC + peak AC) or 1000 V RMS CAT III
@ 20:1 and 200:1
Max. amplitude ±7 V into 50 kΩ load
Offset (typical)  < ±5 mV
Noise (typical) 0.7 mV RMS
Source impedance (typical) 1 Ω @ 1 kHz, 8 Ω @ 1 MHz
CMRR (typical)  80 dB @ 50 Hz; 60 dB @ 20 kHz 
Ambient operating temperature –10 to +40 °C
Ambient storage temperature –30 to +70 °C
Power requirements 
Standard 4xAA cells or 6 V DC / 60 mA mains adaptor or regulated 9 V DC / 40 mA mains adaptor
Options Power leads
Length of input leads 45 cm
Length of BNC lead 95 cm
Weight 400 g (including probe and PVC jacket)
Dimension (LxWxH)  170 mm x 63 mm x 21 mm

The following accessories are available for this product:

9 V AC power adaptor
Probus power adaptor for active differential probes
high voltage active differential oscilloscope probe
Price Quantity
TA057 25 MHz 1400 V Differential Probe User’s Guide
Choosing the right Pico Technology active differential probe